Granted Patent
Utility
US 5,284,327 · App. 07/875,863
Extrusion quenching apparatus and related method
Inventors:
William R. Arthur, Douglas T. Bozich, Richard B. Jacobus, Thomas J. Rodjom, Joseph R. Sikora
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Apr 29, 1992
Inventors
William R. Arthur
Douglas T. Bozich
Richard B. Jacobus
Thomas J. Rodjom
Joseph R. Sikora
Assignee (at issue)
Aluminum Company of America
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.